期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 152, 期 1-2, 页码 187-200出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1381-1169(99)00296-4
关键词
catalysis; diol; dehydration; cyclisation; Prins; phosphates
Catalysis of the formation of cyclic ethers from an unsaturated alcohol, 0-methylhept-5-en-2-ol, and of bicyclic ethers from 1,3-diols- by metal (IV) phosphates has been investigated. Good yields were obtained. The diol, 1-(2-hydroxyethyl)cyclopentanol, was cyclised to form an oxetane ring, which is the intermediate in a reverse Prins reaction and provides an alternative to reaction through a cyclic five-membered ring. The reactivity of the metal (IV) phosphate catalysts can be contrasted to that of superacidic solvent systems containing fluorosulphuric acid. (C) 2000 Elsevier Science B.V. All rights reserved.
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